UPSC 2016 CDS II GK Paper

Question : 21 of 120

Marks: +1, -0

Which one of the following statements is not correct?

[2016 CDS-II]

The response of the ear to sound of increasing intensity is approximately logarithmic.
The sensitivity of the human ear does not vary with the frequency of the sound.
When two or more waves traverse the same medium, the displacement of any element of the medium is the algebraic sum of the displacements due to each wave.
Longitudinal waves can travel in all media—solids, liquids and gases.

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